Improvement in attaching tubes to oilers



UNITED STATES PATENT OFFICE.

S. V. BECKWITH, OF HAMDEN, CONNECTICUT.

IMPROVEMENT IN ATTACHING TUBES TO OILERS..

Specification forming part of Letters Patent No. 56,163, dated July 10, 1866.

To all whom t may concern:

Beit known that I, S. V. BEGKWITH, of Hamden, in the county of New Haven and State of Connecticut, have invented a new and useful Improvement in Attaching Tubes to Oilers, Ste.; and l do hereby declare the following, when taken in connection with the accompanying drawings and the letters of rei'- erence marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specication, and represent, in-

Figure 1, a side View; Fig. 2, a central sectional view; Fig. 3, a side view of the tube removed from the neck; and in Fig. 4 a bottom view of the neck and tube together.

My invention relates to an improvement in the manner of securing the tips to oilers and similar articles. Heretofo're this has been done by a screw-thread cut upon the tube and a corresponding thread in the neck of the oiler, which forms a `joint impossible to make so that lthe oil within the oiler will not work its way through the joint.

By my invention this difficulty is entirely overcome 5 andit consists in making the hole through the neck of the oiler slightly tapering to receive the tube, and the end of the tube conical to t the hole in the neck, and locking the tube thus formed by a piu on the one and a spiral groove upon the other.

To enable others skilled in the art to construct and use my improvement, I will proceed to fully describe my invention as illustrated in the accompanying drawings.

A is the tube, and B the neck, of ordinary construction. I make the hole through the neck tapering, and the lower end of the tube corresponding thereto, so as to t closely the one into the other, as seen in Fig. 2. In one side of the neck, and near the bottom, I 'x a pin, a, (see Fig. 2,) and upon the lower end ofthe tube I form a groove spiral-ly upon the surface, (see Fig. 3,) so that when the tube is inserted into the neck the pin may enter the groove upon the tube. Then,by partially turning the tube, the pin will pass into the groove, drawing the tube closely into the neck, and secure it therein.

When it is desired to fill the oiler, or for other purposes to remove the tube, return the tube to release it from the pin.

By this construction the joint is made perfectly tight, and possesses one other advantage over the tube as ordinarily constructedviz., that it is not required to turn the tube but partially around to remove it, while in the ordinary constructionit must be turned many times around.

I do not broadly claim securing the tube to its neck by means of a bayonet-joint;7 sor called, as such is not new.

Having, therefore, fully described myinvention, what I claim as new and useful, and desire to secure by Letters Patent, is-

The combination of the conieally-formed tube A, with its correspondingly-formed seat e Vin the neck B, and secured therein so as to form a self-packing joint by means of the spiral groove on the one and corresponding pins on the other, substantially as specified.

S. V. BECKWITH. 

